Table 8.

Time-dependent detector count rate thresholds for a 250 mSv effective dose for different ¹⁹²Ir inhalation and ingestion exposure scenarios relative to corresponding values for a reference inhalation exposure for a 1-µm ANTAD Type M aerosol. All values are taken for the Ludlum 12S survey meter screening an adult female subject in the AP (chest or abdomen) position at 200 cm.

	1 µm AMAD			5 µm AMAD
	Type F	Type M	Type S	Type F	Type M	Type S	Ingestion
Time (days)	Ratio	Ref	Ratio	Ratio	Ratio	Ratio	Ratio
0.01	2.72	1.00	0.79	3.79	2.05	1.71	7.78
0.04	2.67	1.00	0.79	3.71	2.06	1.73	7.69
0.06	2.66	1.00	0.79	3.69	2.05	1.72	7.77
0.10	2.65	1.00	0.79	3.67	2.05	1.72	7.90
0.40	2.62	1.00	0.79	3.54	2.00	1.69	8.59
0.60	2.62	1.00	0.79	3.48	1.97	1.65	8.75
1.00	2.69	1.00	0.79	3.45	1.87	1.57	8.53
2.00	3.07	1.00	0.78	3.55	1.55	1.27	6.36
4 00	3.79	1.00	0.76	3.87	1.02	0.75	1.81
6.00	3.96	1.00	0.75	3.94	0.86	0.61	0.46
8 00	3.96	1.00	0.75	3.92	0.83	0.58	0.25
1 0.00	3.94	1.00	0.76	3.90	0.83	0.58	0.21
20.00	3.91	1.00	0.76	3.86	0.82	0.58	0.21
30.00	3.95	1.00	0.77	3.91	0.82	0.58	0.21